Originally Posted by
HillRider
Damon Rinard's web site's SpoCalc.xls gives the ERD for the Open 4CD as 608 mm and Open Pro as 605. It has no listing for an Open 4CD Tubular rim and I don't recall there ever being one. Mavic did use the name "Reflex" for both clincher and tubular rims.
Yes u r right the SpoCalc.xls give me the 608mm answer but when I calculated give me 294 and 293mm spokes but it's too long. I have some search on other site it said MAVIC Open 4CD (blue/yellow) has ERD of 605mm.
And I was confrusted and measure the diameter by hand it gives me 603mm, thats mean my rims Shrunk???